M359540 五、新型說明： 【新型所屬之技術領域】 本創作係有關於一種手動吊車離合器結構，t 傅尤彳日一種過載時 會自動離合確保安全之手動吊車離合器結構。 【先前技術】 手動吊車係屬_種輕便之舉重揚升之機械結構，通常用於或 車裝卸重物或者於工作場所吊起較重之另件方便組裝或加工。 Φ於其結構簡單且不易受場地之限制，因此其使用範圍相當廣泛由 手動吊車之躺顧主要係湘—搖做序轉動^機構與 纏繞結構進而捲繞鍊條或鋼親而達到吊起重物之目的。習用之手 動吊車因不具離合魏，·，往往在制者不知吊車之負載極 限與重物之實際重量的情形下過載操作，此—來，不但危險亦 會造成機件間的過度磨耗而降低吊車之使用壽命。 魏於此，便有轉之製造商於搖臂無繞結構間加裝一離 •合ϋ藉以取代制之傳動機構並提高手㈣車侧時之安全性。 用之手動吊車離合器主要侧用兩侧面貼合之棘輪結構，當手 動吊車過猶，_先互相齡之棘銳構會_者貼合所產生 之摩擦力小於負載，而產生滑動現象，使兩者财生空轉的現象 進而達到自動離合之目的。 互相順向咬合之棘輪結構’軸於手動吊車過餅能提供自 動離合的功能，但是在離合的過程中棘輪於離合致復位(重新咬合) 的迅私中翁易產生絲的現象，在高度貞載的航下產生振動 M359540 彈性元件藉以改變變向棘輪 性元件自從動輪脫離外，同時可壓縮 與從動輪間之結合力。 "本創作之上述及其他目的與優點，從下述所選用實施例 之詳細說明與附圖中，獲得深入了解。 當然，本創作在某些另件上，或另件之安排上容許有所不同， 但所選用之實施例’則於本說明書中，予以詳細制，並 中展示其構造。 ' 【實施方式】 本創作係有關於-種手解車之合器結構，請參閱如第一至 一圖所不’其主要包含有一從動輪⑽’該從動輪(10)上依序套設 有一變向棘輪(20⑽及至少一彈性元件⑽，並#由一設於從動輪 (10) 上之螺帽㈣，避免變向棘輪⑽與彈性元件⑼)自從動輪(1〇) 上脫離其中，該彈性元件(30)係軸向推頂變向棘輪(20)，迫使變 向棘輪(2〇)緊貼於從動輪⑽而提高變向棘輪(2〇)與從動輪⑽間 之、力’該磨捧力即為手動吊車之負載極限。此外，調整螺帽(4刃 之位置即可調整彈性元件(30)施予變向棘輪(2〇)之推力，進而改變 變向棘輪(20)與從動輪(1〇)結合之結合力，也就是說，利用螺帽(4〇) 即可輕_整手動吊車之負載紐，以應不同之吊掛需求。 °月參閱如第二至四圖所示，該從動輪(10)係包含有一盤狀輪體 (11) ，該輪體(11)之中心處則軸向伸設有一軸套(12)，且該軸套(12) 之自由端部係形成有外螺紋(121)。又該輪體(11)相對於軸套(12)之 一面則等距設有複數定位孔(13)，本創作之較佳實施例中，定位孔 M359540 (13) 之數量係設為六個，並圍成一對應於輪體(n)之同心圓，且每 一定位孔(13)中係容置有一鋼珠(14^ - 凊參閱如第二與第五至六圖所示，該變向棘輪(20)係套設於從 動輪(10)之軸套(12)上’當手動吊車之負載超過變向棘輪(2〇)與從 動輪(10)間之磨擦力時，變向棘輪(2〇)會相對於從動輪(1〇)轉動， 亦即無法驅動從動輪(1〇)令吊車從事吊掛作業而達到離合之目的。 該變向棘輪(20)之周緣係形成有系列齒部(21)，利用齒部(21) #與搖臂(50)之聯結關係，如第一圖所示，當搖臂(50)往復擺動時， 可單向轉動該變向棘輪(20)。該變向棘輪(20)貼合於從動輪(10)之 一面係形成複數導引斜槽(22)，當變向棘輪(20)組裝於軸套(12) 後，每一導引斜槽(22)係與與一對應之定位孔(13)連通，使得鋼珠 (14) 係分別容置於定位孔(13)與導引斜槽(22)中。該導引斜槽(22) 係為水滴狀之型態且其深度與寬度係成正'比例設計，又該導引斜 槽(22)最深處之深度與定位孔(13)之深度總和係略大於鋼珠(14)之 • 直徑，如第七圖所示。且該變向棘輪(2〇)異於從動輪(10) —面之中 央處係形成有一容置槽(23)。 請參閱如第二圖所示，該至少一彈性元件(3〇)係套設於從動輪 (10)之轴套(12)上並容置於變向棘輪(2〇)之容置槽(23)中，該至少一 彈性元件(30)係提供變向棘輪(20)轴向之推力，藉以提高其與從動 輪(10)間之結合力，於本創作之較佳實施例中，該至少一彈性元件 (30)係為兩逆向疊合之盤型彈簧^ 該螺帽(40)係鎖設於從動輪(1〇)轴套(12)端部之外螺紋(121) M359540 上’除可避免變向棘輪(2〇)與彈性元件㈣自從動輪⑽上脫離 .外，同柯壓縮彈性元件(30)藉以提高變向棘輪⑽與從動輪⑽ .間之結合力，是以’調整螺帽(40)相對於軸套(12)之位置即可調整 變向棘輪(20)與從動輪⑽間之結合力，而_調整手動吊車負載 極限之目的。 請參閱如第七圖所示，當吊車之負載未大於從動輪⑽與變向 棘輪⑽間之結合力時，鋼雜)係位攸位孔⑽與導引斜槽㈤ 籲之最深處’令變向棘輪(20)可以藉由其與從動輪⑽間之結合力並 利用鋼珠(14)順利驅動從動輪⑽帶動吊車中之纏繞結構進而捲繞 鍊條或鋼緵而達解起重物之目的。而當吊車之負载大於從動輪 (10)與變向棘輪(20)間之結合力時，意即彈性元件⑽所施予變向 棘輪⑽之軸向推力小於吊車之負載，令變姆輪(鞭無法再藉 由鋼珠⑼帶動傳動輪(10)，而相對於傳動輪⑽轉動，此時，鋼 珠(14)會沿導引斜槽(22)滑動並反向推動變向棘輪(2〇)直到進入下 φ -個導引斜槽(22)中，告知使用者已經過載操作，必須藉由螺帽⑽ 調整吊車之負载值或是降低吊車之卫作負荷。 綜上所述’本創作確實具有如下幾項優點： ()、零件加工容易。本創作最主要之離合結構，為定位孔 〇3)、導5丨斜槽(22)與鋼珠由於定位孔⑽解引斜糟⑼係 分別凹設於從動輪(10)與變向棘輪(2〇)，因此加工容易，且鋼珠㈣ 市面上即有便品，可大幅降低手動吊車之生產成本。 ()降低離合動作執行時所產生之震動。由於導引斜槽(22) M359540 (0)與從動輪(聊她驗生之料，進而延瓣使用壽命。 創：1 上與所機例之揭示係用以說明本創作，並非用以限制本 =故舉凡數值變更輪♦置換仍蝴樹之料。 ^ _細綱’可絲知本财齡_本纖_可達 實 品中均未見有類似之發表’ 已付合專利法之規定，爰依法俱文提出新型專财請。 【圖式簡單說明】 第-圖係本創作钱於手解車時之實施態樣。 第一圖係本創作之剖視圖。 第二圖係本創作從動輪之剖視圖。 第四圖係本創作從動輪之正視圖。 第五圖係本創作變向棘輪之正視圖。 弟/、圖係本創作變向棘輪之剖視圖。 鲁第七圖係本創作之動作示意圖。 【主要元件符號說明】 1 0從動輪 1 1輪體 1 2軸套 1 21外螺紋 1 3定位孔 1 4鋼珠 2 0變向棘輪 2 3容置槽 2 1齒部 2 2導引斜槽 3 0彈性元件 4 0螺帽 5 0搖臂M359540 V. New description: [New technical field] This creation department is about a manual crane clutch structure. t Fu Youyi is a manual crane clutch structure that automatically clutches when overloaded to ensure safety. [Prior Art] Manual cranes are a kind of lightweight mechanical structure that is used for heavy lifting, usually used for loading or unloading heavy objects or lifting heavy parts in the workplace for assembly or processing. Φ is simple in structure and difficult to be restricted by the site. Therefore, its use range is quite wide. The main crane is the main system of Xiang-Shake, rotating the mechanism and winding structure to wind the chain or steel to reach the lifting weight. The purpose. The conventional manual crane does not have a clutch, because it is often overloaded when the manufacturer does not know the load limit of the crane and the actual weight of the heavy object. This is not only dangerous but also causes excessive wear between the parts and reduces the crane. The service life. In this case, the manufacturer has changed the installation between the rocker arm and the unwound structure. The replacement mechanism is used to replace the transmission mechanism and improve the safety of the hand (4) side. The main side of the manual crane clutch is a ratchet structure that is attached to the two sides. When the manual crane passes over the yoke, the frictional force generated by the lashing is smaller than the load, and the sliding phenomenon occurs. The phenomenon of idling of the wealthy person further achieves the purpose of automatic clutching. The ratchet structure that meshes with each other in the direction of the hand can provide automatic clutching function in the manual crane, but in the process of clutching, the ratchet is in the fast-reset (re-engagement) of the clutch, and the wire is easy to produce. Vibration under the load of the M359540 elastic element to change the direction of the ratcheting element from the driven wheel, while compressing the combined force with the driven wheel. The above and other objects and advantages of the present invention are obtained from the detailed description of the preferred embodiments and the accompanying drawings. Of course, the present invention is tolerated on certain parts, or in the arrangement of the parts, but the selected embodiment is described in detail in the present specification, and its construction is shown. 'Embodiment】 This creation is about the structure of the hand-to-handle vehicle. Please refer to the figure as shown in the first to the first. It mainly includes a driven wheel (10). The driven wheel (10) is arranged in sequence. There is a variable ratchet wheel (20 (10) and at least one elastic element (10), and # is a nut (four) provided on the driven wheel (10) to prevent the deflecting ratchet (10) and the elastic element (9) from being separated from the driven wheel (1〇), The elastic element (30) axially pushes the deflecting ratchet (20), forcing the turning ratchet (2〇) to abut against the driven wheel (10) to increase the force between the turning ratchet (2〇) and the driven wheel (10). This grinding force is the load limit of the manual crane. In addition, adjusting the nut (the position of the 4th edge can adjust the thrust of the elastic element (30) to the variable ratchet (2〇), thereby changing the bonding force of the combination of the variable direction ratchet (20) and the driven wheel (1〇). That is to say, the nut (4〇) can be used to lightly load the load of the manual crane to meet different hanging requirements. ° See the second to fourth figures, the driven wheel (10) contains There is a disc-shaped wheel body (11), and a sleeve (12) is axially extended at the center of the wheel body (11), and the free end of the sleeve (12) is formed with an external thread (121). Further, the wheel body (11) is provided with a plurality of positioning holes (13) equidistantly from one side of the sleeve (12). In the preferred embodiment of the present invention, the number of positioning holes M359540 (13) is set to six. And enclosing a concentric circle corresponding to the wheel body (n), and each of the positioning holes (13) is provided with a steel ball (14^ - 凊 see the second and fifth to sixth figures, the change The ratchet wheel (20) is sleeved on the sleeve (12) of the driven wheel (10). When the load of the manual crane exceeds the friction between the variable direction ratchet (2〇) and the driven wheel (10), the variable direction ratchet (2〇) will rotate relative to the driven wheel (1〇), also That is, the driven wheel (1〇) cannot be driven to cause the crane to engage in the hanging operation to achieve the purpose of clutching. The periphery of the variable direction ratchet (20) is formed with a series of teeth (21), using the tooth portion (21) # and the rocker arm (50) The coupling relationship, as shown in the first figure, when the rocker arm (50) reciprocates, the variable direction ratchet (20) can be rotated in one direction. The variable direction ratchet (20) is attached to the driven wheel (10) One of the faces forms a plurality of guiding chutes (22). When the redirecting ratchets (20) are assembled to the bushings (12), each of the guiding chutes (22) is associated with a corresponding positioning hole (13) Connected so that the steel balls (14) are respectively received in the positioning hole (13) and the guiding chute (22). The guiding chute (22) is in the shape of a drop and its depth and width are positive. In the proportional design, the depth of the deepest portion of the guiding chute (22) and the depth of the positioning hole (13) are slightly larger than the diameter of the steel ball (14), as shown in the seventh figure, and the variable direction ratchet (2) 〇) Different from the driven wheel (10), a receiving groove (23) is formed at the center of the surface. Referring to the second figure, the at least one elastic element (3〇) is sleeved on the driven wheel (10). ) The sleeve (12) is placed on the reversing ratchet (2〇) In the accommodating groove (23), the at least one elastic member (30) provides the axial thrust of the yaw ratchet (20), thereby improving the bonding force between the yoke and the driven wheel (10). In a preferred embodiment, the at least one elastic member (30) is a two-folded disc spring that is reversely folded. The nut (40) is locked to the end of the driven wheel (1) bushing (12). (121) The M359540 is used to improve the combination of the variable direction ratchet (10) and the driven wheel (10). The force is to adjust the joint between the variable direction ratchet (20) and the driven wheel (10) by adjusting the position of the nut (40) relative to the sleeve (12), and _ adjusting the load limit of the manual crane. Please refer to the figure as shown in the seventh figure. When the load of the crane is not greater than the combined force between the driven wheel (10) and the variable direction ratchet (10), the steel miscellaneous position (10) and the guiding chute (5) are called the deepest point. The reversing ratchet (20) can use the steel ball (14) to smoothly drive the driven wheel (10) to drive the winding structure in the crane and then wind the chain or the steel shovel to achieve the purpose of lifting the weight by the combined force with the driven wheel (10). . When the load of the crane is greater than the combined force between the driven wheel (10) and the variable direction ratchet (20), it means that the axial thrust of the variable direction ratchet (10) applied by the elastic element (10) is less than the load of the crane, so that the variable wheel ( The whip can no longer drive the transmission wheel (10) by the steel ball (9), but rotates relative to the transmission wheel (10). At this time, the steel ball (14) slides along the guiding chute (22) and pushes the reversing ratchet (2〇) in the opposite direction. Until the lower φ - guide chute (22) is entered, the user is informed that the overload operation has been performed, and the load value of the crane must be adjusted by the nut (10) or the load of the crane is lowered. It has the following advantages: (), easy processing of parts. The most important clutch structure of this creation is positioning hole 3), guide 5 丨 chute (22) and steel ball due to positioning hole (10) decoupling (9) system concave It is installed in the driven wheel (10) and the variable direction ratchet (2〇), so it is easy to process, and the steel ball (4) has a convenient product on the market, which can greatly reduce the production cost of the manual crane. () Reduce the vibration generated when the clutch action is performed. Because of the guiding chute (22) M359540 (0) and the driven wheel (to talk about the material of her birth, and then extend the life of the flap. Chuang: 1 The above and the disclosure of the machine is used to illustrate the creation, not to limit This = the reason for the value change wheel ♦ replacement is still the material of the butterfly. ^ _ fine outline can be known to the financial age _ this fiber _ can not be found in the actual product has a similar publication 'paid patent law爰 提出 提出 提出 提出 提出 提出 提出 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第 第The cross-sectional view of the moving wheel. The fourth picture is the front view of the driven wheel of the creation. The fifth picture is the front view of the ratcheting of the creation. The younger brother, the drawing is a cross-sectional view of the ratcheting of the creation. Schematic diagram of the action. [Main component symbol description] 1 0 driven wheel 1 1 wheel body 1 2 bushing 1 21 external thread 1 3 positioning hole 1 4 steel ball 2 0 variable direction ratchet 2 3 accommodating groove 2 1 tooth 2 2 guide Chute 3 0 elastic element 4 0 nut 5 0 rocker